Home / 13,664.16-20,496.75-4,777.76

Finding the Fourth Proportional to 13,664.16, 20,496.75 and 4,777.76

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Solution

The fourth proportional to 13,664.16, 20,496.75 and 4,777.76 is: 7,166.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.16 : 20,496.75 = 4,777.76 : x
  2. Step 2: Convert to fraction form
    13,664.16/20,496.75 = 4,777.76/x
  3. Step 3: Cross multiply
    13,664.16x = 20,496.75 × 4,777.76
  4. Step 4: Simplify right side
    13,664.16x = 97,928,449.80
  5. Step 5: Solve for x
    x = 97,928,449.80/13,664.16
  6. Step 6: Final answer
    x = 7,166.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.